500,000+ documents tracked
Trusted by 30,000+ professionals
Used across 175+ countries
Adobe Sign Alternative
Looking for an Adobe Sign alternative? Sizle combines document tracking, lead capture, and signatures in one deal room.
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Trusted by high performing teams
From intent to final agreement
Sizle unifies secure data rooms, real-time analytics and e-signatures into a Document CRM to track, sign, and close every deal from one place.
Send and Track
Every document becomes a live analytics portal. See who viewed, clicked, and returned, for full visibility from first open to signature.
Reveal and Analyze
See which slides capture attention and which are skipped. Turn every document into a source of live, measurable customer intelligence.
Sign and Close
Effortlessly request and collect fast, binding e-Signatures from right inside your documents. Includes Certificate of Completion.
The Document CRM that unifies your workflow
Sizle combines powerful dealmaking tools into a single, streamlined flow.
Branded Smart Links
Look professional before they click
Your logo, your domain. Create secure, trackable links that build instant buyer trust.
Document Analytics
Know what clients really think
See which pages they study and skip. Never guess about engagement again.
Instant Signatures
Close deals in-record time
Collect fast, legally-binding signatures directly inside your documents. No wasted time.
Virtual Deal Rooms
Secure data rooms for every deal
Turn any document into a secure, branded portal with live analytics tracking and viewer access.
Lead Capture
Turn viewers into pipeline
Automatically capture leads from every document view. Perfect for proposals and pitches.
Smart Delivery
Enterprise security, zero complexity
Send from your domain with access-control and complete branding customization.
FAQs
A Deal Room is a secure, branded online space for sharing decks, contracts, and documents with investors or clients. Unlike static PDFs, Sizle Deal Rooms include real-time analytics, lead capture, and eSignatures to help you close deals faster.
Every view is tracked in real time. Sizle shows who viewed your Deal Room, when they viewed it, how long they stayed on each page or slide, and what content they focused on.
Yes. You can connect your own domain and add custom logos, so every Deal Room matches your company’s brand perfectly.
Yes. You can set roles, permissions, and viewer controls. Lock or expire access, set expiry dates, or revoke links instantly for complete security.
Yes. Sizle includes built-in digital signatures with full audit trails, timestamped logs, and signer verification. All signatures are legally binding worldwide.
Yes. Sizle supports team workspaces for shared documents and analytics.
Your links and analytics remain safely stored. You can upgrade anytime to keep viewer insights, signatures and leads active without interruption.
Trusted by professionals globally
Academic Research Sharing
Sizle.io is a great tool to easily share files that we do not want to be copied or modified.
Client Proposal Sharing
The best part about Sizle.io is finding out who viewed a presentation, which slides they focused on, and for how long.
B2B Sales Proposals
The sales team were amazed that they could “see” what slides the clients were reviewing in real-time.
Agency Proposal Tracking
Sizle.io surpassed our expectations when we saw how a client is engaging with our proposal.
Fundraising
Understanding when, where, and how much the recipients of our decks are engaged helps tremendously with our follow-up.”
SaaS Proposal Tracking
Sizle.io is incredibly easy to use. Upload and send your document and you get detailed analytics on who viewed it.
Training Material Tracking
The ability to quickly and securely share a document and view analytics has improved my file sharing process.
Consultant Proposal Tracking
The insights and analytics are detailed and useful. No longer do I have to wonder if a client has opened an email.
Software Sales Proposals
Seeing how much time prospects spend on each slide helps us optimise our collateral.
Turn docs into deal intelligence
Every unread document costs you time and opportunity. Sizle shows what really happens after you hit send, instantly and securely.
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